---- Minecraft Crash Report ----

WARNING: coremods are present:
  IC2core (industrialcraft-2-2.6.59-ex110.jar)
Contact their authors BEFORE contacting forge

// Daisy, daisy...

Time: 16. 9. 8 ¿ÀÈÄ 7:12
Description: Exception in server tick loop

net.minecraftforge.fml.common.LoaderException: java.lang.NoClassDefFoundError: com/sun/jna/WeakIdentityHashMap
	at net.minecraftforge.fml.common.LoadController.transition(LoadController.java:186)
	at net.minecraftforge.fml.common.Loader.initializeMods(Loader.java:795)
	at net.minecraftforge.fml.server.FMLServerHandler.finishServerLoading(FMLServerHandler.java:107)
	at net.minecraftforge.fml.common.FMLCommonHandler.onServerStarted(FMLCommonHandler.java:333)
	at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:214)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoClassDefFoundError: com/sun/jna/WeakIdentityHashMap
	at ic2.core.item.armor.jetpack.JetpackHandler.<clinit>(JetpackHandler.java:54)
	at ic2.core.IC2.modsLoaded(IC2.java:419)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at net.minecraftforge.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:595)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
	at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
	at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
	at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
	at com.google.common.eventbus.EventBus.post(EventBus.java:275)
	at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:239)
	at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:217)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
	at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
	at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
	at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
	at com.google.common.eventbus.EventBus.post(EventBus.java:275)
	at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:142)
	at net.minecraftforge.fml.common.Loader.initializeMods(Loader.java:793)
	... 5 more
Caused by: java.lang.ClassNotFoundException: com.sun.jna.WeakIdentityHashMap
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 34 more
Caused by: java.lang.NullPointerException
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
	... 36 more


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
	Minecraft Version: 1.10.2
	Operating System: Windows Server 2008 R2 (amd64) version 6.1
	Java Version: 1.8.0_102, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 1054702360 bytes (1005 MB) / 1516765184 bytes (1446 MB) up to 1516765184 bytes (1446 MB)
	JVM Flags: 2 total; -Xms1536M -Xmx1536M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	FML: MCP 9.32 Powered by Forge 12.18.1.2042 6 mods loaded, 6 mods active
	States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
	UCHIJ	mcp{9.19} [Minecraft Coder Pack] (minecraft.jar) 
	UCHIJ	FML{8.0.99.99} [Forge Mod Loader] (forge-1.10.2-12.18.1.2042-universal.jar) 
	UCHIJ	Forge{12.18.1.2042} [Minecraft Forge] (forge-1.10.2-12.18.1.2042-universal.jar) 
	UCHIJ	hopperducts{1.4.7} [Hopper Ducts] (hopperducts-mc1.9.4-1.4.7.jar) 
	UCHIE	IC2{2.6.59-ex110} [IndustrialCraft 2] (industrialcraft-2-2.6.59-ex110.jar) 
	UCHIJ	harvestcraft{1.9.4-pre} [Pam's HarvestCraft] (Pam's HarvestCraft 1.9.4-1.10.2a.jar) 
	Loaded coremods (and transformers): 
IC2core (industrialcraft-2-2.6.59-ex110.jar)
  
	Profiler Position: N/A (disabled)
	Is Modded: Definitely; Server brand changed to 'fml,forge'
	Type: Dedicated Server (map_server.txt)